Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7168703 | Puzzle game incorporating a rotational element and methods of playing thereof | — | 2007-01-30 |
| 5542673 | Intersecting manipulable puzzle | — | 1996-08-06 |
| D368938 | Intersecting manipulable puzzle | — | 1996-04-16 |
| D339390 | Rotatable manipulable puzzle | — | 1993-09-14 |
| 5172912 | Rotatable manipulable puzzle | — | 1992-12-22 |
| 4871173 | Puzzle or game having token filled track and turntable | — | 1989-10-03 |